dm: sound: Create a uclass for sound

[oweals/u-boot.git] / drivers / sound / sandbox.c

diff --git a/drivers/sound/sandbox.c b/drivers/sound/sandbox.c
index d24eb9ae9ce70b4efadf6878bc11e85fdac65408..ee2635f41d256ad402d0e17ac399fe7ca584f24a 100644 (file)
--- a/drivers/sound/sandbox.c
+++ b/drivers/sound/sandbox.c
@@ -4,8 +4,10 @@
  */
 
 #include <common.h>
-#include <dm.h>
 #include <audio_codec.h>
+#include <dm.h>
+#include <i2s.h>
+#include <sound.h>
 #include <asm/sound.h>
 #include <asm/sdl.h>
 
@@ -17,6 +19,16 @@ struct sandbox_codec_priv {
        uint channels;
 };
 
+struct sandbox_i2s_priv {
+       int sum;        /* Use to sum the provided audio data */
+};
+
+struct sandbox_sound_priv {
+       int setup_called;
+       int sum;        /* Use to sum the provided audio data */
+};
+
+#ifndef CONFIG_DM_SOUND
 int sound_play(uint32_t msec, uint32_t frequency)
 {
        sandbox_sdl_sound_start(frequency);
@@ -25,6 +37,7 @@ int sound_play(uint32_t msec, uint32_t frequency)
 
        return 0;
 }
+#endif /* CONFIG_DM_SOUND */
 
 int sound_init(const void *blob)
 {
@@ -44,6 +57,27 @@ void sandbox_get_codec_params(struct udevice *dev, int *interfacep, int *ratep,
        *channelsp = priv->channels;
 }
 
+int sandbox_get_i2s_sum(struct udevice *dev)
+{
+       struct sandbox_i2s_priv *priv = dev_get_priv(dev);
+
+       return priv->sum;
+}
+
+int sandbox_get_setup_called(struct udevice *dev)
+{
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+
+       return priv->setup_called;
+}
+
+int sandbox_get_sound_sum(struct udevice *dev)
+{
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+
+       return priv->sum;
+}
+
 static int sandbox_codec_set_params(struct udevice *dev, int interface,
                                    int rate, int mclk_freq,
                                    int bits_per_sample, uint channels)
@@ -59,6 +93,60 @@ static int sandbox_codec_set_params(struct udevice *dev, int interface,
        return 0;
 }
 
+static int sandbox_i2s_tx_data(struct udevice *dev, void *data,
+                              uint data_size)
+{
+       struct sandbox_i2s_priv *priv = dev_get_priv(dev);
+       int i;
+
+       for (i = 0; i < data_size; i++)
+               priv->sum += ((uint8_t *)data)[i];
+
+       return 0;
+}
+
+static int sandbox_i2s_probe(struct udevice *dev)
+{
+       struct i2s_uc_priv *uc_priv = dev_get_uclass_priv(dev);
+
+       /* Use hard-coded values here */
+       uc_priv->rfs = 256;
+       uc_priv->bfs = 32;
+       uc_priv->audio_pll_clk = 192000000;
+       uc_priv->samplingrate = 48000;
+       uc_priv->bitspersample = 16;
+       uc_priv->channels = 2;
+       uc_priv->id = 1;
+
+       return sandbox_sdl_sound_init();
+}
+
+static int sandbox_sound_setup(struct udevice *dev)
+{
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+
+       priv->setup_called++;
+
+       return 0;
+}
+
+static int sandbox_sound_play(struct udevice *dev, void *data, uint data_size)
+{
+       struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+       int i;
+
+       for (i = 0; i < data_size; i++)
+               priv->sum += ((uint8_t *)data)[i];
+
+       return i2s_tx_data(uc_priv->i2s, data, data_size);
+}
+
+static int sandbox_sound_probe(struct udevice *dev)
+{
+       return sound_find_codec_i2s(dev);
+}
+
 static const struct audio_codec_ops sandbox_codec_ops = {
        .set_params     = sandbox_codec_set_params,
 };
@@ -75,3 +163,40 @@ U_BOOT_DRIVER(sandbox_codec) = {
        .ops            = &sandbox_codec_ops,
        .priv_auto_alloc_size   = sizeof(struct sandbox_codec_priv),
 };
+
+static const struct i2s_ops sandbox_i2s_ops = {
+       .tx_data        = sandbox_i2s_tx_data,
+};
+
+static const struct udevice_id sandbox_i2s_ids[] = {
+       { .compatible = "sandbox,i2s" },
+       { }
+};
+
+U_BOOT_DRIVER(sandbox_i2s) = {
+       .name           = "sandbox_i2s",
+       .id             = UCLASS_I2S,
+       .of_match       = sandbox_i2s_ids,
+       .ops            = &sandbox_i2s_ops,
+       .probe          = sandbox_i2s_probe,
+       .priv_auto_alloc_size   = sizeof(struct sandbox_i2s_priv),
+};
+
+static const struct sound_ops sandbox_sound_ops = {
+       .setup  = sandbox_sound_setup,
+       .play   = sandbox_sound_play,
+};
+
+static const struct udevice_id sandbox_sound_ids[] = {
+       { .compatible = "sandbox,sound" },
+       { }
+};
+
+U_BOOT_DRIVER(sandbox_sound) = {
+       .name           = "sandbox_sound",
+       .id             = UCLASS_SOUND,
+       .of_match       = sandbox_sound_ids,
+       .ops            = &sandbox_sound_ops,
+       .priv_auto_alloc_size   = sizeof(struct sandbox_sound_priv),
+       .probe          = sandbox_sound_probe,
+};